I'm sure if you would ask driver #1, he would have told you that he was trying to avoid a deer or dog that jumped out into the road.
I'm not saying he was right, I'm just saying that driver #2 must have had to change his drawers when he got to the next exit. The point being that even if you know you are right, never pick a fight with a stranger, you don't know what he's packing.
"Also the reason the Mustang didn't want to drive in the middle is because its illegal to pass on the right.... see how the idiot slowpokes make others break the law by breaking it themselves, "
Just hit your blinker and go around him. The "idiot slowpoke" was doing 75mph (10mph over the limit) Your cruising up the highway at around 80 mph in a 65 mph zone and your worried about breaking the law by passing somebody on the right?